I've been trying to get DiabloMiner working with my ATI Radeon Mobility 5730 card. On Ubuntu, this works fine, and less than 1% of the blocks found are rejected by the mining pool (slush). However, with the same SDK and same DiabloMiner version on Windows, roughly 30% of the blocks are being rejected, and 15% return a hardware error. Has anybody encountered a similar problem before? I use ATI SDK v. 2.1 with Catalyst 10.11.
I also have a different question. On Ubuntu, my hashrate stays at 70 mhash/s as long as I'm actively using the computer. When I close the lid--which, according to the power management settings I've set, shouldn't do anything except blank the screen--the hashrate drops to 50 mhash/s. If this expected, and if so, how can I prevent it from happening?